Partners to research the exascale computer systems that are needed for what will become the world's largest radio telescope Initial 32.9 million EURO, five-year collaboration will materialize in Drenthe, the Netherlands at the newly established ASTRON & IBM Center for Exascale Technology Computer system will be targeted to read, analyze and store one exabyte of raw data per day, two times the entire daily traffic on the World Wide Web

ASTRON, the Netherlands Institute for Radio Astronomy and IBM today announced an initial 32.9 million EURO, five-year collaboration to research extremely fast, but low-power exascale computer systems targeted for the international Square Kilometre Array (SKA). The SKA is an international project to build the world's largest and most sensitive radio telescope. Scientists estimate that the processing power required to operate the telescope will be equal to several millions of today's fastest computers. ASTRON is one of the leading scientific partners in the international project that is developing the SKA. Upon completion in 2024, the telescope will be used to explore evolving galaxies, dark matter and even the very origins of the universe-dating back more than 13 billion years.

The next generation of large scientific instruments, of which the SKA is a key example, requires a high-performance computing architecture and data transfer links with a capacity that far exceeds current state-of-the-art technology. To solve this unprecedented challenge, ASTRON and IBM scientists in the Netherlands and Switzerland have launched an initial five-year collaboration called DOME, named for the protective cover on telescopes and the famous Swiss mountain.

DOME will investigate emerging technologies for large-scale and efficient exascale computing, data transport and storage processes, and streaming analytics that will be required to read, store and analyze all the raw data that will be collected daily.* Scientists from both organizations will collaborate at the newly established ASTRON & IBM Center for Exascale Technology in Drenthe, the Netherlands.

Ton Engbersen, IBM Research - Zurich explains, "If you take the current global daily Internet traffic and multiply it by two, you are in the range of the data set that the Square Kilometre Array radio telescope will be collecting every day. This is Big Data Analytics to the extreme. With DOME we will embark on one of the most dataintensive science projects ever planned, which will eventually have much broader applications beyond radio astronomy research."

Only by basing the overall design on architectures that are beyond the current state-of-the-art will it be possible to handle the vast amounts of data produced by the millions of antenna systems of the SKA. Specifically, scientists at ASTRON and IBM will investigate advanced accelerators and 3D stacked chips for more energy-efficient computing. They will also research novel optical interconnect technologies and nanophotonics to optimize large data transfers, as well as high-performance storage systems based on next-generation tape systems and novel phase-change memory technologies.

"Large research infrastructures like the SKA require extremely powerful computer systems to process all the data. The only acceptable way to build and operate these systems is to dramatically reduce their power consumption. DOME gives us unique opportunities to try out new approaches in Green Supercomputing. This will be beneficial for society at large as well," said Marco de Vos, Managing Director of ASTRON.

To help determine a fundamental design based on realistic parameters, scientists will use advanced and proven methodologies developed by IBM Research - Zurich to model and optimize the architectures of large-scale infrastructures. The basis for this optimization will be an analysis of the existing system for the low-frequency array (LOFAR), designed and built by ASTRON. LOFAR also serves as a so-called 'pathfinder telescope' for the larger SKA because it demonstrates pivotal SKA technology.

The DOME collaboration is realized with financial support of the Dutch Ministry of Economic Affairs, Agriculture and Innovation (EL&I) and from the Province of Drenthe.